make a killing vs procure

make a killing

verb
  • To win or earn a large amount of money. 

procure

verb
  • To acquire or obtain. 

  • To obtain a person as a prostitute for somebody else. 

  • To induce or persuade someone to do something. 

How often have the words make a killing and procure occurred in a corpus of books? (source: Google Ngram Viewer )